Ghost Ranch is a 21,000-acre retreat and education center located close to the village of Abiquiú in Rio Arriba County in north central New Mexico, United States. It was the home and studio of Georgia O'Keeffe, as well as the subject of many of her paintings.
Ghost Ranch is also known for a remarkable concentration of fossils, most notably that of the theropod dinosaur Coelophysis, of which it has been estimated that nearly a thousand individuals have been preserved in a quarry at Ghost Ranch.